Radiator.



No. 802,294. PATENTED 001?. 17, 1905. J.D.KARNAGHAN. RADIATOR.

APPLICATION FILED AUG. 12.1003.

Wifesses PrtTliiT JOHN D. KARNAGHAN, OF ZANESVILLE, OHIO.

RADIATOR.

Specification of Letters Patent.

Patented Oct. 17, 1905.

Application filed August 12,1903. Serial. No. 169,265.

To a, Lu/tom 11/; 'H'I/(I/Z/ concern:

Be it known that I, J oau 1'). KARNAGHAN, a citizen of the United States, residing at Zanesville, in the county of Muskingum and State of Ohio, have invented a new and useful Ra- Cll9.t()l,0f which the following is a specification.

My inventionrelates to radiators, and especially to devices of this character which are composed of sheet metal.

My invention has for its objects to produce a device of this character of simple construction which will be efficient in operation and one in which the above-noted objections are entirely obviated, while at the same time the cost of manufacture is materially decreased.

To these ends the invention comprises the novel details of construction and combination of parts more fully hereinafter described.

In the accompanying drawings, Figure 1 is a sectional perspective of a portion of a radiator embodying my invention and showing the parts assembled. Fig. 2 is a detail section illustrating another form of embodiment of the invention. Fig. 3 is a similar view showing the parts unassembled.

Referring to the drawings, 1 indicates a radiator composed of sheet metal and comprising end compartments 2 and intermediate compartments 3, of which latter but one is shown in the drawings, it being understood, of course, that any number of the sections or chambers 3 may be employed, according to the length of radiator desired.

Each section or com partmcnt of the radiator consists of a primary plate 4 and a secondary plate 5. These plates, which are stamped or otherwise formed from sheet metal, are provided upon their meeting edges with peripheral flanges 6 7, the flange 6 of the primary plate 41 being of a width slightly greater than twice the width of the flange 7 and folded around the latter for uniting the plates. The plates forming the outer side walls of the end chambers 2 are wholly closed, while the plates forming the inner walls of said chambers and the walls of the intermediate chambers 3 have registering apertures in their meeting faces, forming openings 8 of communication between the chambers. The meeting plates of the adjacent compartments are securely united in pairs by permanent fastening devices, which, as shown in Fig. 1, comprise rivets 9, engaged through flanges 10, surrounding the openings 8. In this connection it is to be understood that the sections of the radiator are connected in identically the same manner at points adjacent to both their tops and bottoms. Hence the above detailed description is deemed sufficient for both. At their longitudinal centers the plates 4: and 5 are bulged or pressed outward to form hollow reinforcing-ribs 11, the outer faces of which meet when the parts are assembled for bracing the sections relatively one from another, the plates being provided adjacent to their upper and lower ends with ribs 12, the outer faces of which meet, and centrally, through which the openings 8 are formed. The ribs 11 and 1). are extended wholly and continuously across the plates transversely, thus bracing and spacing the plates uniformly one from another and producing enlarged portions within the chambers at the points of entrance of the heating fluid to allow for expansion of the latter.

In building up the radiator I first connect the plate 5 of one compartment to the plate at of another by the fastening means herein shown and permanently unite said plates by brazing the edges of the flanges 10, surrounding the openings 8. I next fold the flanges 6 of the primary plates around the flanges T of the secondary plates and finally permanently unite said parts by brazing. Th us it will be seen that by my mode of procedure I am enabled to produce a radiator, the component parts of which are permanently united, one in which leakage is entirely obviated, the ordinary connecting-m p ples are dispensed with, and one in which the interior of the chambers may be readily galvanized prior to connect ing the parts through the medium of 'l'langes 6 and 7. After the radiator has been built up in the manner above described I prefer ably extend between the sections a common strengthening-rod 13, disposed centrally of the openings 8 and extending entirely through the radiator, with its ends engaged by nuts 14., lying upon the outer faces of the outer plates of the end sections 2. I also provide for bracing the outer plates of the end sections, each by means of a strengthening or reinforcing plate 15, disposed upon the interior of the chamber and riveted or otherwise secured to the side plate of the latter.

in the construction illustrated in Fig. 2 the device is in all respects identical with that above described, and the manner of assemblage of the parts is likewise the same, except that instead of employing the rivets 9 l connect the plate 5 of one section with the plate L of another by forming the flange 10 on one of the parts considerably wider and folding IIO it around the flange 10 on the other part, as in the ordinary method of eyeleting.

From the foregoing it Will be seen that I produce a device which is admirably adapted for the attainment of the ends in view; but it is to be understood that i do not limit or con fine myself to the precise details herein set forth, inasmuch as minor changes may be made therein Without departing from the spirit or scope of the invention.

Having thus described my invention, what I claim is A radiator comprising a plurality of communicating sections or chambers, each composed of a pair of plates having adjacent to their ends and longitudinal centers hollow reinforcing-ribs extending continuously across the same and operating to hold the sections properly spaced, said sections being provided through their side Walls With openings of communication lying Wholly Within the area of the ribs, means surrounding the said openings for holding the sections assembled, reinforcingribs passing through the openings and secured exteriorly of the radiator, and reinforcingplates secured to the inner sides of the outer plates of the end sections and extending throughout a greater portion of the height of the radiator.

In testimony that I claim the foregoing as my own I have hereto aifiXed my signature in the presence of two witnesses.

. JOHN D. KARNAGHAN.

Witnesses:

CALDWELL H. BROWN, GRAYGE ALLMAN. 

